As per Infopeople's suggestion, I am reviewing these libraries using Web 2.0 technologies:
Charlotte and Mecklinburg County
Ann Arbor District Library
Denver Public Library
Seattle Public Library
In particular, I will examine how they are using RSS feeds, podcasting, MySpace and Second Life to reach their patrons. (I'm listing them here so I can take advantage of the hyperlinking all in one place- this kind of research usually leads to many open browsers, and a bewildered feeling that I've lost track of what I started out to do).
I think I will start first with RSS- I have feeds on my homepage, and have created a bloglines accouint some time ago. Time to go back and refresh my memory and then examine how these libraries are using this technology.